One of his apprentices was William Merle , who became a partner in Cox's refinery in 1781 when it became Cox & Merle .Grimwade p.742 mistakenly attributes the founding of this, the most important refinery of the time to Robert Albion Cox II but as the nephew ,who was free by patrimony in 1786,was almost certainly born after his father William Cox III was free in 1760 he would have been too young. Helen Clifford certainly attributes the refinery to the first Robert Albin Cox.

He died around 1790(Will of Robert Albion Cox of Little Britain, City of London - NA PROB 11/1192 - was proved at PCC on 10th June 1790)

Very pedantic note. Grimwade mark 2292 is filed under RC. The mark is actually RaCOX, the "a" actually being between the legs of the "R" I have a pair of shoe buckles with this mark, which probably date to around 1760.

Members of The Goldsmiths' Company who have been Aldermen of Aldersgate

Robert Albion Cox, Goldsmith. Elected Sheriff 1801; Alderman of Aldersgate Ward, 31st May, 1813; Assistant of Goldsmiths' Company 1814, and Prime Warden 1818. He was not called to the office of Lord Mayor.

His remains lie buried in St. Anne's church, where a monument was erected to his memory.

Source: Transactions of the London and Middlesex Archæological Society - January 1888

Members of The Goldsmiths' Company who have been Aldermen of Aldersgate

Robert Albion Cox, Goldsmith. Elected Sheriff 1801; Alderman of Aldersgate Ward, 31st May, 1813; Assistant of Goldsmiths' Company 1814, and Prime Warden 1818. He was not called to the office of Lord Mayor.

His remains lie buried in St. Anne's church, where a monument was erected to his memory.

Source: Transactions of the London and Middlesex Archæological Society - January 1888

Robert Albion Cox II was likely the younger and a nephew as mentioned in the elders 1790 will. A three thousand and five hundred pound bequest was left to this nephew.